Found in a documentation for radio amateurs from the 90s, this circuit is suitable for RF measurements in transmission systems. The potentiometer must be of a special type.
Using a PLL this circuit can generate signals of up to 500 kHz which is basically determined by the...
The integrated circuit used in this regulator is quite old. Its 1970s casing is still made of...
Any power MOSFET that supports the current of the controlled stepper motor can be used on this...